Thanks all. I went with the 370bts, (the throttle on the rt hand control). So far so good, although the emissions are giving off a stronger fuel smell than any of the others I have used. Will check after a few more tank fulls.
Of course there is a newer model, lol. Expect this with computer stuff, not landscape equipment, oh well. From the specs... more wind, 2 lbs lighter, slightly louder and uses a diaphram vs a piston, fuel consumption the same.
Meanwhile, I've put much more time on a trimmer (Stihl 110) with both a blade and string head. Have since added a cultivator/edger gearbox to build a small garden (with a few more in near future). Use mostly to 'tame the Wild'... perhaps I'll post a separate review in near future.